Answered

• LM3445: The LED lighting design question

  

  Paul Yeh

  Resolved

  Part Number: LM3445 Hi team, My customer would like to design searchlight equipment and they think LM3445 should be possible candidate. The specification they need are 1. Vin=90Vac~264Vac 2. Vout <40Vdc (LED number is not confirmed) 3. Iled <700mA…

  • Resolved

  • over 4 years ago
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• LM3445: OVP circuit

  

  gz wu

  TI Thinks Resolved

  Part Number: LM3445 Dear all: I find two OVP circuit for LM3445 here. My colleague want to find a simpler OVP solution.Is there any other simpler OVP solution? Thanks!

  • over 4 years ago
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• LM3445: Line Regulation improve solution

  

  gz wu

  TI Thinks Resolved

  Part Number: LM3445 Hi, We have a High PF flyback triac dimmable project,and we are going to use LM3445.I want to design the driver refer to AN-2034. But the Line regulation is not good.Do you have improve solution? Thank you! B/R

  • over 4 years ago
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• LM3445: Bleeder circuit position

  

  gz wu

  TI Thinks Resolved

  Part Number: LM3445 Hi: I want to move bleeder circuit to the front of bridge diodes. Does it work well? B/R

  • over 4 years ago
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• LM3445: Suitable device to control current value

  

  Kuan Wei Chen (Kevin Chen)

  TI Thinks Resolved

  Part Number: LM3445 Dear Team, Here is Kevin from the Delta Taiwan team. The customer is looking for a suitable LED controller, not sure if we have a suitable device Vin: 150Vdc ~ 180Vdc, Vout: 121Vdc ~ 45Vdc Iout = 0 A~ 3.2 A with 2% tolerance (The current…

  • over 4 years ago
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• LM3445: LM3445 Flyback

  

  Fabrizio utente3

  TI Thinks Resolved

  Part Number: LM3445 Other Parts Discussed in Thread: TPS92314A , LM3447 Hi, my name is Fabrizio and I'm interested in LM3445 as led driver in flyback configuration. I can't find any calculation tool or excel sheet. Can you help me?

  • over 5 years ago
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• LM3445: Low dim level issue using LM3445

  

  Wade Novin

  TI Thinks Resolved

  Part Number: LM3445 I am using the LM3445 in accordance with the application note SNVS570M At low dim levels the buck converter transitions from regulating the current to constant on state of the switching transistor. From the application note: As the…

  • over 5 years ago
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• LM3445: Flicker and Jump-up at low dim level

  

  K.Sakai

  Part Number: LM3445 Hello, I am now evaluating Dimming performance and have some problem. My error might be equivalent to following case but there is not solution so Let me add this case. "LM3445: Low dim level issue using" I am using equivalent…

  • over 4 years ago
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• LM3445: About 1% low current LED control

  

  Tao_2199

  TI Thinks Resolved

  Part Number: LM3445 Hello, Regarding to 1% low current LED control on LM3445, my customer is asking some question. (Question) 1) Due to 1% low current LED control over total current is kept, what point should they consider? We refer following thread…

  • over 5 years ago
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• LM3445: Schematic confirmation

  

  Timsen

  TI Thinks Resolved

  Part Number: LM3445 Dear all: Attached is the schematic diagram I initially built. Please help confirm whether the scheme is feasible or not？ Apply to LED dimmer, use 100V input, need to meet the requirements of the front cut dimmer and rear cut di…

  • over 5 years ago
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